Seneca, IL
Full City Profile · Illinois · Grundy County County
3.1
/5.0
B
Good
2,525
Population
407/sq mi density
$91,065
Median Income
$42,714 per capita
$206,400
Home Value
$257,585 Zillow
$988
Median Rent
21.3% income on rent
50°F
Avg Temperature
130
Violent Crime/100K
565 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$91,065 median income, 4.2% unemployment
A+
Affordability
5.0 / 5.0
$206,400 home value, $988/mo rent
F
Safety
1.0 / 5.0
130 violent crimes/100K
C
Education
2.0 / 5.0
12.9% bachelor's degree or higher
Population Overview
Total Population
2,525
Census 2023
Population Density
407
per square mile
Land Area
2.7
square miles (7.0 km²)
Median Age
35.2 yrs
10% below US avg (38.9 yrs)
Gender Distribution
53.1%
Male
46.9%
Female
Race & Ethnicity
| White | 89.9% US: 61.6% |
| Black | 1.1% US: 12.4% |
| Hispanic | 6% US: 18.7% |
| Asian | 0% US: 5.9% |
| Other | 3% |
City vs. U.S. Average
White
89.9%
Black
1.1%
Hispanic
6%
Asian
0%
Thin line = U.S. average
Language Spoken at Home
| English Only | 97.8% US: 78.5% |
| Spanish | 1.9% US: 13.4% |
City vs. U.S. Average
English Only
97.8%
Spanish
1.9%
Thin line = U.S. average
Social Characteristics
Foreign Born
1.9%
Veterans
11.1%
85% above US avg (6%)
Disability
9.0%
31% below US avg (13%)
Health Insurance Coverage
96.0%
5% above US avg (91.4%)
Uninsured
4.0%
53% below US avg (8.6%)
Income Inequality (Gini)
0.396
US avg: 0.490 (0 = perfect equality, 1 = max inequality)
Complete Demographics Data
Population
| Total Population | 2,525 |
| Population Year | 2023 |
| Population Density | 407 / sq mi |
| Land Area | 2.7 sq mi |
| Median Age | 35.2 years |
Gender
| Male | 53.1% |
| Female | 46.9% |
Race & Ethnicity
| White | 89.9% |
| Black or African American | 1.1% |
| Hispanic or Latino | 6.0% |
| Asian | 0.0% |
Language
| English Only | 97.8% |
| Spanish | 1.9% |
Social Indicators
| Foreign Born | 1.9% |
| Veterans | 11.1% |
| Disability | 9.0% |
| Health Insurance | 96.0% |
| Uninsured | 4.0% |
| Broadband Access | 92.2% |
| Gini Coefficient | 0.396 |
Classification
| USDA Rural-Urban Code | 1, Metro / 1 million+ |